// return the value of the radio button that is checked// return an empty string if none are checked, or// there are no radio buttonsfunction getCheckedValue(radioObj) {if(!radioObj)return"";varradioLength = radioObj.length;if(radioLength == undefined)if(radioObj.checked)returnradioObj....
<input type="radio" id="radio1" name="radio1" value="3">3 <br/> 下拉框: <select id="select1"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> </select> <br/> <button onclick="sub();">提交</button><br/> <button onclick="f...
function abc(){ var sex=document.getElementsByName("userSex");//不能getElementById,ById又只会读数组第一个值 for(var i = 0; i < sex.length; i++) { if(sex[i].checked){ alert(sex[i].value); } } } </script> </HEAD> <BODY> <input id="userSex" name="userSex" type="radi...
This pair of Javascript function can get or set the checked value of a group of radio buttons. These functions are specially designed for dynamic pages, and work without error with zero, one, or more radio buttons. Also, because the radio length is saved before looping, this function is mu...
在这个示例中,当用户点击“Get Selected Value”按钮时,会触发getSelectedRadioValue函数。该函数会遍历所有名为gender的radio按钮,找到被选中的那个,并获取其值,然后将结果显示在页面上的<p>标签中。如果没有radio按钮被选中,则显示“No radio button selected.”。
function getSelectedValue() { var radioButtons = document.getElementsByName("myRadioButtonList"); for (var i = 0; i< radioButtons.length; i++) { if (radioButtons[i].checked) { return radioButtons[i].value; } } return null; } 这个函数将遍历所有具有相同名称的RadioButton,并检查它们是否被...
1、radio为单选按钮，一般单选按钮有多个可供选择的项，而只能选择一个，比如男、女 2、那么给radio标签里面设定一个id或者class属性 3、在js里面，可以通过checked这个属性来判断哪一个radio标签被选择，4、这样就可以获取到radio标签的值，然后根据标签的值进行判断，保存/插入数据库等操作 ...
value="option3"> Option 3 <button onclick="checkRadioButton()">Check Status</button> <script> function checkRadioButton() { var option1 = document.getElementById("option1"); var option2 = document.getElementById("option2"); var option3 = document.getElementById("option3"); if (...
<label><input type="radio" name="radio" value="4"/>网通</label> <input type="button" onclick="alert(getRadioValues());" value="取值方法一" /> <input type="button" onclick="foo();" value="取值方法二" /> </body> </html>...
<input name="radio" type="radio" value="5" />5 <input name="button" type="button" value="GetValue" onclick="GetValue()"/> </div> </body> </html> /// js选中radio document.consumerform.consumer_sex[0].checked=true;